2 tbspolive oil1onion, finely chopped1garlic clove, finely chopped, plus 2 extra, thinly sliced on a mandolin½ tspchilli flakes300 gm small green lentils100 ml red wine500 ml (2 cups) chicken stock1 fresh bay leaf1 oregano sprig, plus extra leaves to serve½ bunch cavolo nero, coarsely chopped1½ tbsp red wine vinegar, or to taste60 ml (1/4 cup) extra-virgin olive oil2 thin cacciatore salami, thinly sliced
Heat olive oil in a large saucepan over medium-high heat. Add onion, chopped garlic and chilli flakes, and sauté until onion is tender (4-5 minutes). Add lentils and red wine, simmer until wine is reduced by half (1-2 minutes), then add stock, bay leaf and oregano sprig. Bring to the boil, then reduce heat to medium and simmer, half-covered with a lid, until lentils are just tender (20-25 minutes). Stir in cavolo nero and simmer until just wilted (2-3 minutes). Discard bay leaf and oregano sprig, add vinegar, and season generously to taste.
Heat extra-virgin olive oil in a frying pan over medium-high heat, add salami and fry, turning once, until crisp (1-2 minutes). Add sliced garlic and fry until light golden (20-30 seconds). Remove from heat and season to taste.
Spoon lentil mixture onto a platter, top with salami and garlic, and serve scattered with extra oregano.